Usually when people say "DC plant" they mean a rectifier. A charger + inverter like you proposed would probably also count as having DC power plant. I used one of these once: https://www.aimscorp.net/12-Volt-Pure-Sine-Inverter-Chargers/ Worked fine, but no remote management. I'm sure there are a dozen options out there to pick from.
An isolation transformer might be a less intrusive change. Tripp Lite makes some affordable ones. On the trip lite ones I had the hot and neutral were isolated, but the ground passed straight through. Depending on where the noise is coming from that might not fix it, but you can test an isolated ground by snapping off the ground prong on the transformer or using a 2-prong adapter. I say "test" because you shouldn't run without a ground permanently. -----Original Message----- From: AF <[email protected]> On Behalf Of Jan-GAMs Sent: Sunday, January 08, 2023 3:41 PM To: [email protected] Subject: Re: [AFMUG] backup power for small tower It's in a parking-lot of a business and they started plugging their food truck into the power-source. So what do you mean by "DC plant"? On 1/8/23 12:20, Bill Prince wrote: > If your site is 100% DC-powered, the batteries should provide all the > isolation you need. My suggestion is to just switch to DC plant. > > > bp > <part15sbs{at}gmail{dot}com> > > On 1/8/2023 11:21 AM, Jan-GAMs wrote: >> Ever since a food truck started plugging their truck into the same >> power source we use we've been experiencing severe packet loss >> through it. Possibly electrical motor-hum? Anyway, I'm wondering >> what is available or suggested to use to place a better electrical >> isolation for a battery backup in the box on the tower. >> >> We're using two ubiquiti radios one cheap ubiquiti router and a Cisco >> fiber to ether-net router. We have a cyberpower 450va that provides >> power for less than an hour when we have a power outage. It would be >> better if we could use something more hefty. The NEMA box is 2ft x >> 2ft x 8in. Inside is 2ft x 2ft x 6in. So there isn't much room. >> >> I'm thinking maybe a stack of batteries, a charger and a sine-wave >> invertor? Unless someone knows of a product that would do what's >> needed? >> >> > -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
